package com.q.springboot.framework.util;

import com.alibaba.fastjson.JSONObject;
import org.springframework.util.StringUtils;

import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Date;

/**
 * @author ：qmf
 * @date ：Created in 2021/10/24 12:09
 * @description：根据IP地址获取详细的地域信息
 * @modified By：
 */
public class AddressUtils {
    /**
     * @param ip
     * @return {
     * "data":{
     * "area":"",
     * "country":"中国",
     * "isp_id":"100017",
     * "queryIp":"182.200.55.126",
     * "city":"沈阳",
     * "ip":"182.200.55.126",
     * "isp":"电信",
     * "county":"",
     * "region_id":"210000",
     * "area_id":"",
     * "county_id":null,
     * "region":"辽宁",
     * "country_id":"CN",
     * "city_id":"210100"
     * },
     * "msg":"query success",
     * "code":0
     * }
     */
    public static String getAddresses(String ip) {
        String urlStr = "http://ip.taobao.com/outGetIpInfo";
        String returnStr = getResult(urlStr, ip);
        JSONObject parse = (JSONObject) JSONObject.parse(returnStr);
        JSONObject data = null;
        String address = "";
        if (parse != null) {
            data = parse.getJSONObject("data");
            if (data != null) {
                String region = data.getString("region");
                String city = data.getString("city");
                String isp = data.getString("isp");
                address = region + city + isp;
            }
        }
        if (StringUtils.isEmpty(address)) {
            address = "地球村";
        }
        return address;
//            return address;
//        }
//        return null;
    }

    /**
     * @param urlStr 请求的地址
     * @return
     */
    private static String getResult(String urlStr, String ip) {
        URL url = null;
        HttpURLConnection connection = null;
        try {
            url = new URL(urlStr);
            connection = (HttpURLConnection) url.openConnection();// 新建连接实例
            /**
             * 超时错误 由 2s改为5s
             */
            connection.setConnectTimeout(50000);// 设置连接超时时间，单位毫秒
            connection.setReadTimeout(10000);// 设置读取数据超时时间，单位毫秒
            connection.setDoOutput(true);// 是否打开输出流 true|false
            connection.setDoInput(true);// 是否打开输入流true|false
            connection.setRequestMethod("POST");// 提交方法POST|GET
            connection.setUseCaches(false);// 是否缓存true|false
            connection.connect();// 打开连接端口
            DataOutputStream out = new DataOutputStream(connection.getOutputStream());// 打开输出流往对端服务器写数据
            out.writeBytes("ip=" + ip);// 写数据,也就是提交你的表单 name=xxx&pwd=xxx
            out.flush();// 刷新
            out.close();// 关闭输出流
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "utf-8"));// 往对端写完数据对端服务器返回数据
            // ,以BufferedReader流来读取
            StringBuilder buffer = new StringBuilder();
            String line = "";
            while ((line = reader.readLine()) != null) {
                buffer.append(line);
            }
            reader.close();
            return buffer.toString();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (connection != null) {
                connection.disconnect();// 关闭连接
            }
        }
        return null;
    }

    /**
     * unicode 转换成 中文
     *
     * @param theString
     * @return
     */
    public static String decodeUnicode(String theString) {
        char aChar;
        int len = theString.length();
        StringBuffer outBuffer = new StringBuffer(len);
        for (int x = 0; x < len; ) {
            aChar = theString.charAt(x++);
            if (aChar == '\\') {
                aChar = theString.charAt(x++);
                if (aChar == 'u') {
                    int value = 0;
                    for (int i = 0; i < 4; i++) {
                        aChar = theString.charAt(x++);
                        switch (aChar) {
                            case '0':
                            case '1':
                            case '2':
                            case '3':
                            case '4':
                            case '5':
                            case '6':
                            case '7':
                            case '8':
                            case '9':
                                value = (value << 4) + aChar - '0';
                                break;
                            case 'a':
                            case 'b':
                            case 'c':
                            case 'd':
                            case 'e':
                            case 'f':
                                value = (value << 4) + 10 + aChar - 'a';
                                break;
                            case 'A':
                            case 'B':
                            case 'C':
                            case 'D':
                            case 'E':
                            case 'F':
                                value = (value << 4) + 10 + aChar - 'A';
                                break;
                            default:
                                throw new IllegalArgumentException("Malformed      encoding.");
                        }
                    }
                    outBuffer.append((char) value);
                } else {
                    if (aChar == 't') {
                        aChar = '\t';
                    } else if (aChar == 'r') {
                        aChar = '\r';
                    } else if (aChar == 'n') {
                        aChar = '\n';
                    } else if (aChar == 'f') {
                        aChar = '\f';
                    }
                    outBuffer.append(aChar);
                }
            } else {
                outBuffer.append(aChar);
            }
        }
        return outBuffer.toString();
    }

    /**
     * 获取IP地址
     *
     * @param request
     * @return String
     * @Author 科帮网
     * @Date 2017年7月31日 更新日志
     * 2017年7月31日  科帮网 首次创建
     */
    public static String getIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("X-Real-IP");
        if (!StringUtils.isEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
            return ip;
        }
        ip = request.getHeader("X-Forwarded-For");
        if (!StringUtils.isEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
            int index = ip.indexOf(',');
            if (index != -1) {
                return ip.substring(0, index);
            } else {
                return ip;
            }
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_CLIENT_IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }

    @lombok.Data
    public static class Result {
        private String msg;
        private Integer code;
        private Date data;
    }

    @lombok.Data
    public static class Data {
        private String area;
        private String country;
        private String isp_id;
        private String queryIp;
        private String city;
        private String ip;
        private String isp;
        private String county;
        private String region_id;
        private String area_id;
        private Object county_id;
        private String region;
        private String country_id;
        private String city_id;
    }
}

